On his first day as president, Joe Biden signed a letter of acceptance that set in motion the 30-day process for the United States to re-join the Paris Agreement on climate. On the day the US returns to the accord, John Kerry, the US Special Envoy for Climate, sits down with Nobel Laureate Al Gore to discuss the make-or-break decade ahead of us....

Pastor Rick Warren, author of "The Purpose-Driven Life," reflects on his own crisis of purpose in the wake of his book's wild success. He explains his belief that God's intention is for each of us to use our talents and influence to do good.

Parasitic worms date back thousands of years, causing diseases that limit human potential. But today, effective treatment against them requires just a few pills, taken once or twice a year. With 1.7 billion people at risk of infection, Ellen Agler and her team at the END Fund are imagining a world without disease caused by worms. Learn about how...

Sometimes trying your best isn't enough; when the situation demands it, you need to be perfect. For Jon Bowers, who runs a training facility for professional delivery drivers, the stakes are high -- 100 people in the US die every day in car accidents -- and it's perfection, or "a willingness to do what is difficult to achieve what is right," tha...

In 1972, the Club of Rome, an organization of thought leaders from around the world, published their first "Limits to Growth" report, a foundational text warning the world of the consequences of human activity on the health of the planet. In conversation with TED global curator Bruno Giussani, co-president of the Club of Rome Sandrine Dixson-Dec...

Global markets let people put their money behind ideas that make society better. So why does capitalism get a lot of the blame for the world's problems? In this forward-thinking talk, Nasdaq president and CEO Adena Friedman explains how markets can level the playing field -- as long as we imagine more and new ways to balance the capitalistic fou...

"History has shown us that in moments of crisis, society can truly transform," says environmental educator Severn Cullis-Suzuki. Nearly 30 years ago, at just 12 years old, she spoke at the UN's Earth Summit in hopes of reversing the planet's slide into ecological disaster. Some at the summit listened and took radical action, but for the rest of ...

Ivonne Roman cofounded the Women's Leadership Academy to increase the retention of women in policing.

"The good news is it's now clearly cheaper to save the planet than to ruin it," says engineer and investor John Doerr. "The bad news is: we are fast running out of time." In this conversation with climate policy expert Hal Harvey, the two sustainability leaders discuss why humanity has to act globally, at speed and at scale, to meet the staggeri...

"Africa is like a sleeping giant," says journalist and satirist Adeola Fayehun at the beginning of this hilarious, incisive talk. "The truth is I am trying to wake up this giant. That's why I air the dirty laundry of those in charge." Follow along as she roasts corrupt African officials and shows why the continent already has all it needs to tak...

Professional Arab women juggle more responsibilities than their male counterparts, and they face more cultural rigidity than Western women. What can their success teach us about tenacity, competition, priorities and progress? Tracing her career as an engineer, advocate and mother in Abu Dhabi, Leila Hoteit shares three lessons for thriving in th...

Every human and natural system -- from oil extraction to the flight of a flock of starlings -- can be seen as a set of repeating patterns. These patterns can be disrupted for good or for bad, says Nigel Topping, the High Level Climate Action Champion for COP26, the UN's climate change conference set to take place in November 2021 in Glasgow, Sco...

To create more confident, competent leaders and teams, Cindy Solomon is radically updating the way we think about leadership.

An advocate for women's leadership, the Honorable Julia Gillard was 27th Prime Minister of Australia.

A powerhouse of scientific leadership in Africa, Christian Happi sequences and studies the genomes of infectious diseases like Ebola, HIV and coronavirus.

Linda Hill studies collective genius -- the way great companies, and great leaders, empower creativity from many.

In 2018, Scotland, Iceland and New Zealand established the network of Wellbeing Economy Governments to challenge the acceptance of GDP as the ultimate measure of a country's success. In this visionary talk, First Minister of Scotland Nicola Sturgeon explains the far-reaching implications of a "well-being economy" -- which places factors like equ...

Business school professor Amy Edmondson studies "teaming," where people come together quickly (and often temporarily) to solve new, urgent or unusual problems. Recalling stories of teamwork on the fly, such as the incredible rescue of 33 miners trapped half a mile underground in Chile in 2010, Edmondson shares the elements needed to turn a group...

A net-zero future is possible, but first we need to flip a mental switch to truly understand that we can stop the climate crisis if we try, says Nobel laureate Al Gore. In this inspiring and essential talk, Gore shares examples of extreme climate events (think: fires, floods and atmospheric tsunamis), identifies the man-made systems holding us b...

Forget home economics and standardized tests, education visionary Trish Millines Dziko has a much more engaging and fulfilling way for students to develop real-world skills. Get schooled by Dziko as she shares how project-based learning can transform public education and unlock genius for the next generation of critical thinkers, problem solvers...

Simon Sinek leads off his TED Talk, and his new book, with a moving story about a US military commander who loves his troops. It's among several TED Talks featuring lessons in leadership from the military. But when civilians are asked to draw such lessons from military leaders, let’s agree: It’s complicated. A few thing we don't have in commo...

Frances Frei is a professor of technology and operations management at the Harvard Business School.

How can Africa, the home to some of the largest bodies of water in the world, be said to have a water crisis? It doesn't, says Olúfẹ́mi Táíwò -- it has a knowledge crisis. Táíwò suggests that lack of knowledge on important topics like water and food is what stands between Africa's current state and a future of prosperity. In a powerful t...

Farida Nabourema has dedicated her life to fighting the military regime in Togo, Africa's oldest autocracy. She's learned two truths along the way: no country is destined to be oppressed -- and no country is immune to dictatorship. But how can you tell if you're at risk before it happens? In a stirring talk, Nabourema shares the four key signs o...

India has a historic opportunity to power its industrialization with clean energy -- and its energy choices will make or break the world's fight against climate change, says clean energy executive, physicist and author Varun Sivaram. Bringing on-the-ground experience as CTO of India's largest renewable energy company, Sivaram proposes a plan for...

Think about the most tired you've ever been at work. It probably wasn't when you stayed late or came home from a road trip -- chances are it was when you had someone looking over your shoulder, watching your each and every move. "If we know that micromanagement isn't really effective, why do we do it?" asks entrepreneur Chieh Huang. In a funny t...

Facebook COO Sheryl Sandberg looks at why a smaller percentage of women than men reach the top of their professions -- and offers 3 powerful pieces of advice to women aiming for the C-suite.

Given the scale of the challenge, the conversation around climate change is often tinged with doom and gloom. But climate tech investor Gabriel Kra thinks we need to reframe the crisis as a source of tremendous opportunity. He offers five big reasons to be optimistic about climate -- starting with the fact that many of the world's best minds are...

In a time of mourning and anger over the ongoing violence inflicted on Black communities by police in the US and the lack of accountability from national leadership, what is the path forward? Sharing urgent insights into this historic moment, Dr. Phillip Atiba Goff, Rashad Robinson, Dr. Bernice King and Anthony D. Romero discuss dismantling the ...

"If you change your city, you're changing the world," says Eric Garcetti, mayor of Los Angeles and chair of C40 Cities, a network of the world's megacities committed to tackling the climate crisis. He shares tangible ways Los Angeles and other cities across the globe are promoting economic and social justice while taking concrete action on clima...